The process for check in was very difficult. When my friend arrived at the building, a resident in the lobby asked her if she was a tourist, and explained that the condominium rules did not permit short term rentals or sublets. Initially, my friend was told by this resident that she could not access a private building under these rules. After a 45 minute discussion, she was finally allowed to access the apartment and did not have subsequent issues. However, it appears that the arrangement for this Airbnb is against building policy and may recur with future guests. In fact, we saw other guests encountering the same issue who were expelled from the building by residents who were angry with this apparent violation of building rules.
To communicate with the host I was asked to download a third party messaging app, wechat, whose security protocols are suspect.
In addition, when I asked about luggage storage options, I was told twice I would be helped if I provided a five star review, and the luggage storage was to be in a separate unit of the building's adjacent tower. The conversation to arrange this took 45 minutes and once we arrived at the new location, it seemed there was someone in that unit and we felt uncomfortable leaving the bags there so we took them with us.
Finally, the shower was not very clean and we had to wear flip flops to use it.
All in all, this Airbnb is a fine value but travelers should be aware of potential check in and communication issues. And the check in check out policies are quite strict.